Well, there was rather a lot of gravel under the passenger seat, as well as between the alloy skin and the lower chassis rail, by the engine mounting and under the exhaust pipes, where they exit to the outside. I have cleaned it all out and the rattle seems to have gone - horray.
This gravel came for the trip back from Leybourne Castle in June 13, following Paul Head, we had the misfortune to go through some re-tarmacing and both cars got covered in gravel, both inside and out. I though I had cleaned it all out, but not so.
I gave the exhaust a good check over but can see no cracks and checked the silencer. I also checked the spark plug cover and that was all tight. I still think the silencer may need re-packing, as the Caterham kit I used last year has no doubt be blow out. I think the is a company in Ashford who make silencers who could do it for me.
Ian - sorry I don't know who this guy is - is he the racer who killed a cyclist while on the phone ?
Ian B - The lack of hearing. plus the use of ear plugs in means I don't hear all the squeeks, rattles and thumps and it is probably a good thing. Doing 15 miles or so yesterday, with the hearing aids in was awful and the rattle worrying.
Thanks all for suggestions
Piers
R300KWK